form4-wfs3.htm

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 4

Statement of Changes in Beneficial Ownership



Filed pursuant to section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Act of 1935 or Section 30(f) of the Investment Company Act of 1940

  1. Name and Address of Reporting Person:

           Siebecker, Walter F.
           FactSet Research Systems Inc.
           One Greenwich Plaza
           Greenwich, CT 06830

  2. Issuer Name and Ticker or Trading Symbol:

           FactSet Research Systems Inc. (FDS)

  3. IRS Number of Reporting Person, if an entity (voluntary)

            N/A

  4. Statement for Month/Year:

           January 9, 2003

  5. If Amendment, Date of Original ( Month/Year):

            N/A

  6. Relationship of Reporting Person to Issuer:

           (X) Director      (  ) Officer      (  ) 10% Owner

           (  ) Other (specify below)

  7. Individual or Joint/Group Filing (Check Applicable Line)

           (X) Form filed by one reporting person

           ( ) Form filed by more then one reporting person










TABLE  I  -  NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED

1. Title of Security
2. Transaction Date
 3. Transaction Code
 4. Securities Acquired (A) or Disposed (D)
    Code              V Amount     (A) or (D)      Price
                                                    
                                                


  1. Amount of Securities Beneficially Owned at End of Month

           13,010

  2. Ownership Form:   Direct (D) or Indirect (I)

           D

  3. Nature of Indirect Beneficial Ownership

           N/A


TABLE II    -   DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(e.g., puts, calls, warrants, options, convertible securities)
1.  Title of 2.  Conversion or 3.  Transaction 4.  Transaction 5.  Number of Derivative
      Derivative       Exercise Price       Date       Code      Securities Acquired  (A)
      Security       of Derivative                     or Disposed  (D)
      Security       
      Code           V (A)               (D)
Non-qualified        
Stock Options $29.32 01/09/03          A           N/A 3,000                      
(Right to Buy)        



  1. Date Exercisable and Expiration Date (Month/Day/Year)

           20% of the option grant acquired on January 9, 2003 is exercisable on January 9, on
           each of the years 2004, 2005, 2006, 2007 and 2008. Expiration date is January 9, 2013.

  2. Title and Amount of Underlying Securities

           FactSet Research Systems Inc. Common Stock - 3,000 shares

  3. Price of Derivative Security

           N/A

  4. Number of Derivative Securities Beneficially Owned at End of Month

           49,000

  5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)

           D

  6. Nature of Indirect Beneficial Ownership

           N/A



Explanation of Responses:




 
Signature of Reporting Person
       
Date: January 13, 2003 /s/  Walter F. Siebecker
----------------------------
Walter F. Siebecker